Investigation of acoustic streaming patterns around oscillating sharp\n edges

2014/02/17 by Nitesh Nama, Nama, Nitesh, Po‐Hsun Huang +6 · 1 citation
Engineering · #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #Microfluidic and Bio-sensing Technologies #Microfluidic and Capillary Electrophoresis Applications #Nanopore and Nanochannel Transport Studies

paper · pdf · doi:10.48550/arxiv.1402.4152

openalex publication_date 2014/02/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Oscillating sharp edges have been employed to achieve rapid and homogeneous\nmixing in microchannels using acoustic streaming. Here we use a perturbation\napproach to study the flow around oscillating sharp edges in a microchannel.\nThis work extends prior experimental studies to numerically characterize the\neffect of various parameters on the acoustically induced flow. Our numerical\nresults match well with the experimental results. We investigated multiple\ndevice parameters such as the tip angle, oscillation amplitude, and channel\ndimensions. Our results indicate that, due to the inherent nonlinearity of\nacoustic streaming, the channel dimensions could significantly impact the flow\npatterns and device performance.\n

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